George h



upon shelves.

@atwt @Mira GEORGE n. MUNnoE',

lo E NEW YORK- N. .,Y.

. Laim Patent No. 102,302, @ma Apre 26, 1870.

IMPROVEMENT IN APPARATUS FOR COOKING MEAT BY ASTIMJII.

The Schedule referred to in these Letters Patent and making part of the same.

To ali 'whom it may concern Be it known that I, GEORGE H. MUNROE, of the city, county, and .State of New York, have invented a new and useful Apparatus for Cooking Meat by the use of Steam; and I do hereby declare the following to be a full, clear, and accurate description of the same, reference being had t0 the accompanying drawings, of which- Figure 1. represents a longitudinal section; Figure 2, a transverse section; and Figure 3,1 an external view of the end thereof. The object of my invention is to provide a means of cooking meats by the action of steam heat upon the external surface of the receptacle containing the same, a vacuum having been previously formed within the interior of said receptacle.

In the drawings- A is a cylinder of copper or othersuitable material, in which-is placed the meat, either suspended or placed Bis an outer cylinder or jacket, of boiler iron or other suitable material, provided with a ledge or track,

as shown at x, iig. 2, upon which tracks, li fi, iig. 2, connected with the cylinder A, are made to run. The' cylinder A, it will be observed, does not fit closely into the jacket B, but a hspace is left on all sides, as shown .at S.

C is a pipe penetrating cylinder A and running through cylinder B, where a connection is formed with a. vacuum-pump, the said point of connection being shown at c, iig. 3.

D is a pipe in lower portion of the end of cylinder or jacket B, vwhich pipe is used to connect with steamboiler and admit steam to chamber S.

E is a metallic block attached to cylinder B, to preoylinder A from running back too far.

F'F are doors to cylinders A and B.

H H H are shelves or rods, from which the meat may be suspended or upon which it may be placed. l

The mode of operating this oven will be readily comprehended. The inner cylinder having been supplied with the meat to be cooked, it is placed fin. situ, and the door is hermetically closed. The door of the external cylinder isA then closed, and the vacuumpump applied to the pipe O, through which the air is exhausted, and a vacuum formed. Steam is then let on at the port D, andthe cooking process icommences.

The advantages which this method possesses overA other methods with which I am familiar are as follows:

` First, l find that less 4heat is required to cook the meat.

Secondly, I am enabled to save allthe juices, flavor, and nutritious properties of the meat.

Thirdly, and more important than all, I find that by allowing the cooked meat to remain in cacao, it may be preserved uniujured until I am ready to consume it or otherwise dispose of it.` Therefore,

What I claim as new and useful, and what I desire to secure by Letters Patent of the United States, is

-1. The cylinder A and jacket B, arrangcda's described and provided with steam-pipe D and vacuumpipe C, substantially' as and for the purposes set forth..

2. rlhe method of cooking meat or other substances in vacuo, bythe use of steam applied to the exterior ofthe receptacle containing the article to be cooked, the whole arranged substantially as above described.

GEO. H. MUNR-OE.

TREADWELL CLEVELAND, FRANK FULLER. 

